diff --git a/pkgs/by-name/ev/evcc/package.nix b/pkgs/by-name/ev/evcc/package.nix
index c8c8bb8a6a66..70be3472aef2 100644
--- a/pkgs/by-name/ev/evcc/package.nix
+++ b/pkgs/by-name/ev/evcc/package.nix
@@ -17,16 +17,16 @@
 }:
 
 let
-  version = "0.303.2";
+  version = "0.304.0";
 
   src = fetchFromGitHub {
     owner = "evcc-io";
     repo = "evcc";
     tag = version;
-    hash = "sha256-Z8kDC0dtKnsgIvjHFrLShwfKDqE5pkM/TSacadiOPa8=";
+    hash = "sha256-zT/V3b0SQbstUk/dLmCN7bufQ7NsS5UTHIzmQsnaHIU=";
   };
 
-  vendorHash = "sha256-FFI3zVAISX1+r15yPxIto2GX//DQVHWajERPSwLbOSM=";
+  vendorHash = "sha256-7Uz/VYuVnRjpDHvwPO2LLif9iWrGDvxdsre0fENBiwU=";
 
   commonMeta = {
     license = lib.licenses.mit;
@@ -52,7 +52,7 @@ buildGo126Module rec {
 
   npmDeps = fetchNpmDeps {
     inherit src;
-    hash = "sha256-3YKYuwr6r0zgQvlrEZjhIDYmueWCAimjJF4YgeVa8WY=";
+    hash = "sha256-/M/htYm3T5DJfNKLMudItfKKQ179mrUWdL/EVGSt2ss=";
   };
 
   nativeBuildInputs = [